AV-D5010 cpu fan 12 V (50*50*10mm)Specifications: 1. Packaging Detail: white/color box, blister package2. Normal Operating Temperature: 25°C-45°C3. Life Expectancy: Dual Ball Bearing: 55000 hoursSingle Ball Bearing: 35000 hoursSleeve Bearing: 20000-25000 hours Hydraulic Bearing: 30000 hours4. Standard: Fully CE, SGS ApprovedAdvantages:1.Reliable quality as well as Competitive price